WO2016096061A1 - Pièce profilée et procédé de fabrication d'une pièce profilée - Google Patents

Pièce profilée et procédé de fabrication d'une pièce profilée Download PDF

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Publication number
WO2016096061A1
WO2016096061A1 PCT/EP2015/002087 EP2015002087W WO2016096061A1 WO 2016096061 A1 WO2016096061 A1 WO 2016096061A1 EP 2015002087 W EP2015002087 W EP 2015002087W WO 2016096061 A1 WO2016096061 A1 WO 2016096061A1
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WO
WIPO (PCT)
Prior art keywords
profile
layer
profile part
fibers
inner profile
Prior art date
Application number
PCT/EP2015/002087
Other languages
German (de)
English (en)
Inventor
Eckhard Reese
Original Assignee
Daimler Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Daimler Ag filed Critical Daimler Ag
Priority to EP15837222.7A priority Critical patent/EP3233488B1/fr
Priority to US15/537,201 priority patent/US10611128B2/en
Priority to CN201580068908.9A priority patent/CN107107578B/zh
Publication of WO2016096061A1 publication Critical patent/WO2016096061A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00—Layered products having a non-planar shape
    • B32B1/08—Tubular products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/04—Layered products comprising a layer of synthetic resin as impregnant, bonding, or embedding substance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2793/00—Shaping techniques involving a cutting or machining operation
    • B29C2793/0027—Cutting off
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0021—Combinations of extrusion moulding with other shaping operations combined with joining, lining or laminating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • B29C48/9115—Cooling of hollow articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • B32B2307/7242—Non-permeable

Definitions

  • the invention relates to a profile part and a method for producing a profile part.
  • German Offenlegungsschrift DE 10 2009 016 596 A1 discloses an endless profile and a method for the production thereof, wherein the endless profile has a reinforcing layer made of a profiled roving containing reinforcing fibers and a plastic layer surrounding the reinforcing layer.
  • the endless profile is produced by converting the roving containing reinforcing fibers into a profiled shape and then encasing it with a plastic layer by means of an extrusion process. It is possible that the profiling of the roving takes place in that it is applied to a plastic extrusion profile.
  • the disadvantage here is that such a manufactured endless profile is not suitable for hydroforming in a subsequent process step, because it does not have sufficient stability for the required internal pressure, and it is not readily umspritzbar with a particular thermoplastic plastic, because it is one for has low stability for absorbing the externally applied injection pressure.
  • the known production of the continuous profile is carried out in a multi-stage, discontinuous process, wherein first the reinforcing layer is produced, which is then subsequently provided in a separate step with the surrounding plastic layer. In this case, in particular air pockets can arise, which affect the stability and quality of the manufactured component.
  • the invention is therefore an object of the invention to provide a profile part and a method for its production, said disadvantages do not occur.
  • the object is achieved by providing the subject matters of the independent claims. Advantageous embodiments emerge from the subclaims.
  • the object is achieved in particular by providing a profile part which has an inner profile designed as an extrusion profile and at least one reinforcing layer of fiber-reinforced plastic, wherein the reinforcing layer is applied to the inner profile.
  • the inner profile is formed from at least two layers. Due to the multi-layer structure, it is readily possible to give the inner profile sufficient stability for a hydroforming process and / or an encapsulation with a particular thermoplastic. In particular, it is possible to tune the layers functionally to a subsequent use of the component and / or subsequent manufacturing steps, so as to obtain a high quality, tailored for a specific application profile part.
  • the inner profile can already have a high, inherent stability and strength due to its multilayer construction, it is not absolutely necessary to apply a further plastic layer to the reinforcing layer of fiber-reinforced plastic.
  • the profile part can be produced overall in an integrated, continuous process, whereby errors due to air inclusions can be avoided and the quality of the profile part can be increased.
  • the formed as an extrusion profile inner profile is preferably tubular or formed as a hollow profile. In particular, it preferably has a closed cross-section, viewed in the circumferential direction. In this case, different cross-sectional geometries are possible, in particular a circular cross section, an oval cross section, a square cross section, an honorable cross section, or another suitable cross sectional shape.
  • the finished profile part preferably has a cross section which corresponds in terms of its geometry to the geometry of the cross section of the inner profile. However, it is also possible that the cross section of the profile part in the context of the manufacturing process, starting from an original cross section of the inner profile is still changed.
  • the profile part as a whole preferably tubular or formed as a hollow profile, in particular one - seen in the circumferential direction - closed cross section, more preferably a circular cross section, an oval cross section, a square cross section, a polygonal cross section, or another , suitable cross-sectional geometry.
  • a direction which extends concentrically to a longitudinal direction of the profile part.
  • the longitudinal direction is preferably defined by the extrusion direction of the inner profile formed as an extrusion profile, ie the direction along which the inner profile is extruded.
  • a radial direction is perpendicular to the longitudinal direction.
  • the inner profile is preferably also part of the finished profile part, so it remains in this and will not be removed again as part of a downstream process step. Rather, the inner profile gives the profile part in the later
  • the reinforcing layer preferably comprises long fibers, in particular plastic fibers, glass fibers, ceramic fibers, metal fibers, natural fibers, or other suitable fibers.
  • the reinforcing layer comprises aramid fibers or basalt fibers. It is also possible that the reinforcing layer is formed of fiber tapes.
  • the layers of the inner profile preferably have plastic, more preferably at least one thermoplastic. This is advantageous in comparison to the use of thermosets because thermosets are not or at least not readily recyclable, while thermoplastics can be recycled in particular by mechanical processing to a high quality plastic granules. Thus, therefore, a high-quality, sustainable profile part can be formed.
  • At least one of the layers of the inner profile comprises a fiber-reinforced plastic, preferably based on thermoplastic.
  • short fibers are preferably used for the inner profile as a reinforcing fiber, which can be readily extruded in a simple and cost-effective manner in a suitable matrix material to produce the inner profile.
  • the short fibers are preferably selected from a group consisting of plastic fibers, glass fibers, ceramic fibers, metal fibers, natural fibers, and other suitable fibers.
  • aramid fibers or basalt fibers are used as short fibers.
  • the inner profile preferably has a first layer which comprises a first material or consists of a first material, wherein it has a second layer which has a second material or consists of a second material.
  • the first material is different from the second material.
  • the at least two layers of different plastics in particular
  • thermoplastic materials have, or consist of such. It is also possible that the two layers comprise or consist of different fiber-reinforced plastics. Here are the different thermoplastic materials.
  • An embodiment of the profile part is also preferred, which is characterized in that the reinforcing layer is applied by applying an endless fiber material to the inner profile.
  • the profile part is particularly easy to produce with high quality, and in particular in an integrated manufacturing process.
  • An endless fiber material refers to a material in which the length of the fibers is many times greater than their diameter, wherein the fibers can be processed in a continuous process, in particular by braiding, winding, knitting, knitting, weaving, weaving, or in another suitable way.
  • continuous filaments differ from short fibers, because the latter have only a length at which no corresponding processing is possible. Rather, short fibers are typically processed in an extrusion or injection molding process.
  • continuous fibers are typically unwound from a supply roll, which is not possible with short fibers due to the short extension.
  • the continuous fiber material preferably has so-called hybrid fiber rovings, thus fiber bundles which have reinforcing fibers and matrix material. It is possible that such a hybrid fiber roving on the one hand reinforcing fibers and on the other hand fibers of matrix material, for example thermoplastic fibers having.
  • the reinforcing fibers and the matrix fibers may be in the roving
  • the reinforcing fibers of a hybrid fiber roving may be coated with a matrix material, in particular a thermoplastic matrix material. It is possible that the entire matrix material of the hybrid fiber roving as a coating on the
  • Reinforcing fibers is applied so that no additional matrix fibers are present, but it is also possible that the matrix material both in the form of a
  • thermoplastic fibers Coating on reinforcing fibers as well as in the form of separate matrix fibers, thus thermoplastic fibers, is present in a hybrid fiber roving.
  • the profile part in particular in a Konsolmaschines- and / or Pultrusions suits, melt the thermoplastic fiber content of the Hybridmaschinerovings and bring themselves directly as a matrix material in the resulting profile part.
  • a certain proportion of the matrix material comprising the finished profile part is applied by the hybrid fiber rovings of the reinforcing layer, wherein another part of the matrix material is applied by the inner profile, in particular by an outer layer of the inner profile directly in contact with the reinforcing layer. It is possible to tailor these different proportions specifically to the desired properties of the profile part.
  • both the reinforcing layer and the inner profile contribute to the total amount of the matrix material of the profile part, it is possible to reduce the proportion of matrix material in the hybrid fiber rovings of the continuous fiber material and / or in the outer layer of the inner profile.
  • the reinforcing layer is preferably applied to the inner profile, in which the continuous fiber material is braided to the inner profile. This is particularly preferably done in a braided pultrusion process.
  • An embodiment of the profile part is also preferred, which is characterized in that this is produced by common hydroforming of the inner profile with the reinforcing layer.
  • the inner profile and the reinforcing layer are jointly internally high pressure formed.
  • suitable profile parts can be produced very flexibly for various applications.
  • the inner profile is suitable for hydroforming, because it can be formed sufficiently stable due to its multi-layer structure, the occurring during hydroforming temperature and the internal pressure
  • Inner profile can be ensured easily.
  • the profile part which is characterized in that on the profile part connecting elements made of plastic, in particular of a thermoplastic material, are molded. These connecting elements are preferably used for connection to adjacent components, for example in the body construction for a vehicle. It is possible that to the profile part
  • the profile part is also preferred, which is characterized in that the inner profile has an outer layer comprising a matrix material for a fiber-reinforced plastic, or which consists of a matrix material for a fiber-reinforced plastic. It is possible that the outer layer additionally comprises reinforcing fibers, in particular short fibers. If the outer layer of the inner profile comprises a matrix material which is suitable for use in a fiber-reinforced plastic, it can be used in a particularly favorable manner with the
  • the outer layer comprises the same material or consists of the same material, which also has the reinforcing layer as the matrix material.
  • a particularly intimate, material-locking connection between the reinforcing layer and the outer layer of the inner profile wherein it is possible in particular that there is no defined boundary between these layers in the finished profile part, so that they merge into each other continuously.
  • the outer layer of the inner profile comprises a thermoplastic or consists of a thermoplastic.
  • a thermoplastic is used both for the matrix material of the reinforcing layer and for the outer layer of the inner profile.
  • the outer layer comprises a material selected from a group consisting of polyamide, referred to briefly as PA, and polyphthalamide, referred to as PPA for short. It is possible that the outer layer consists of one of these materials. Furthermore, it is possible that one of these materials as matrix material for the
  • the profile part is also preferred, which is characterized in that the inner profile has an inner layer and / or an intermediate layer, which is / are formed as a support layer.
  • this layer performs the function of giving the profile part increased strength and rigidity.
  • the support layer has a higher rigidity and / or strength than the outer layer of the inner profile.
  • the inner layer and / or the intermediate layer have / have
  • Thermoplastic on or consists / consist of a thermoplastic is possible for the material to be selected from a group consisting of polyamide 6, abbreviated PA 6, polyamide 6.6, abbreviated PA 6.6, radiation-crosslinked PA, PPA, polyetheretherketone, or PEEK for short, liquid crystal polymer, LCP for short (Liquid Crystal Called polymer), polyetherimide, called PEI for short, polyphenylene sulfide, called PPS for short, polysulfone, called PSU for short, polyamide 12, called PA 12 short, polyimide and polyoxymethylene, called POM for short.
  • PA 6.6 has better mechanical properties, less moisture absorption, better chemical and media resistance and a higher melting point compared to PA 6.
  • Interlayer is foamed. This improves the thermal insulation properties of the profile part and its friction properties and reduces its specific weight.
  • POM gives the inner profile particularly good sliding properties.
  • the inner layer and / or the intermediate layer comprises / has a material which is suitable for the hydroforming of the profile part, wherein the inner layer and / or the intermediate layer preferably consists of such a material / consist ,
  • the material must be able to withstand pressures of up to about 600 bar and a temperature of about 150 ° C to about 210 ° C damage-free and without relevant change in the material properties.
  • the material must be gas impermeable even under these conditions.
  • An embodiment of the profile part is also preferred, which is characterized in that the inner profile has an inner layer which has a
  • gas impermeable plastic wherein the inner layer is preferably made of a gas-impermeable plastic. It is possible that this is a fiber-reinforced plastic, in particular a plastic comprising a matrix material mixed with short fibers.
  • the inner layer comprises a plastic or consists of one which is suitable for hydroforming.
  • the plastic must be able to the previously mentioned conditions, ie an internal pressure of up to about 600 bar and a temperature of about 150 ° C to about 210 ° C without damage and without relevant change in the
  • the inner layer preferably comprises a thermoplastic or consists of a
  • the inner layer comprises a material or consists of this material, which is selected from a group consisting of PA6.6, irradiated PA, liquid crystal polymer (LCP), polyetherimide (PEI),
  • Polyphenylene sulfide PPS
  • polysulfone PSU
  • PA 12 polyimide
  • PPA polyimide
  • PEEK polyimide
  • POM polyimide
  • POM polyimide
  • PEEK polyimide
  • POM polyimide
  • POM polyimide
  • Liquid crystal polymer also known as FKP or English LCP (Liquid Crystal Polymer) refers to polymers which exhibit liquid-crystalline properties in the melt (thermotropic) or dissolved (lyotropic) and thus a certain degree of order.
  • mesogens are typically present in the polymer. These can be located both in the main chain and in side chains.
  • the intermediate layer and / or the inner layer preferably has a higher-value plastic, in particular a plastic with better
  • the intermediate layer and / or the inner layer is / are particularly suitable for acting as a support layer, especially during hydroforming and / or during the injection molding of connecting elements or during encapsulation of the
  • the intermediate layer and / or the inner layer preferably has / has a plastic which has a glass transition temperature of at least 125 ° C.
  • the inner layer and / or the intermediate layer consists of such a plastic.
  • the inner profile has a - seen in the radial direction - outer layer, an inner layer, and a - viewed in the radial direction - disposed between the outer layer and the inner layer intermediate layer.
  • all layers, ie the outer layer, the intermediate layer and the inner layer made of a thermoplastic or have a thermoplastic. It is possible that at least one of the layers has a
  • the layers differ with respect to the materials used. It is possible that at least two of the layers differ from each other with regard to the reinforcing fibers used and / or the plastic used, in particular the matrix plastic used. This way you can highly specific, tailored to specific requirements profile part can be provided, in which in particular the different layers of the inner profile are tailored to different functions or tasks.
  • the object is also achieved in particular by providing a method for producing a profile part with the following steps, wherein the method is particularly suitable for producing a profile part according to one of the previously described embodiments:
  • An inner profile is extruded with at least two layers.
  • On the inner profile of a reinforcing layer of fiber reinforced plastic is applied.
  • the reinforcing layer is consolidated on the inner profile.
  • the inner profile supports the reinforcing layer and preferably determines its cross section. In addition, it contributes to the matrix material for the profile part
  • the method it is possible to produce different cross sections for the inner profile during extrusion and / or in a subsequent pultrusion step.
  • the cross sections already described in more detail in connection with the profile part can be generated in the context of the method.
  • the inner profile is preferably extruded by means of a multicomponent extruder. In this way, it is easy and with little effort possible to produce a multi-layered inner profile, wherein the different layers can be tailored to predetermined, specific functions.
  • the reinforcing layer is applied to the inner profile by applying an endless fiber material to the inner profile.
  • the continuous fiber material is braided onto the inner profile.
  • the fiber material is wound on the inner profile, applied, weaved, laid on, knitted or applied in any other suitable manner.
  • the continuous fiber material preferably has hybrid fiber rovings, as has already been explained in detail in connection with the profile part.
  • the reinforcing layer is applied to the inner profile immediately after the extrusion. This means in particular that between the
  • the inner profile is extruded as an endless profile, wherein the reinforcing layer is applied directly to the expiring from the extruder inner profile.
  • the continuous fiber material of the reinforcing layer is particularly preferably braided onto the extruded endless inner profile, the extruded endless inner profile being used as a braided core to this extent.
  • the reinforcing layer on the inner profile is preferably a pultrusion, preferably the consolidation of
  • the pultrusion preferably comprises the steps of a post-deformation of the profile part, a deduction thereof and a separation of the resulting endless profile into individual pieces.
  • the endless profile is therefore preferably cut to length at the end of the pultrusion process.
  • a bending step it is possible for a bending step to be carried out, wherein the inner profile is bent together with the applied reinforcing layer.
  • the reinforcing fibers of the reinforcing layer are impregnated during pultrusion with the same thermoplastic as is also provided in the reinforcing layer itself as a matrix material, in particular in the form of thermoplastic fibers of a hybrid fiber roving, or in the form of a coating of reinforcing fibers of a hybrid fiber roving.
  • this composite of reinforcing fibers and thermoplastic material is preferably consolidated.
  • a braiding pultrusion with an upstream extruder is particularly preferably carried out in the context of the method, wherein the inner profile is produced as an endless profile by means of the extruder, onto which the reinforcing layer is applied directly by braiding an endless fiber material.
  • the thus formed endless profile then passes through a pultrusion unit, in which optionally a post-deformation, but in any case a consolidation of the reinforcing layer and a deduction and a separation of individual pieces of the continuous profile.
  • an embodiment of the method is preferred, which is characterized in that the profile part is subjected to a hydroforming. This is readily possible due to the multilayer structure of the inner profile.
  • the profile part is preferably bent. In this way, various shapes of the profile part can be generated application-specific.
  • the profile part is preferably at least partially encapsulated with a plastic.
  • a thermoplastic is selected as the plastic, in particular it is possible for a fiber-reinforced plastic, preferably a short-fiber-reinforced plastic, to be selected.
  • the profile part is encapsulated in total with a plastic.
  • connecting elements are injection-molded onto the profile part, in particular connecting elements for connection to adjacent components in the assembly of a vehicle body. It is possible that the profile part by means of injection-molded connecting elements materially connected to adjacent components, in particular with Plankungsutz, preferably include organo sheet or made of organic sheet, is connected. It is possible that the profile part carries the occurring loads of the overall component.
  • the profile part is designed as a structural component.
  • the profile part is designed as a support tube for a vehicle, in particular for a motor vehicle and especially for a truck.
  • the profile part is designed as an assembly carrier or as a carrier tube for a front flap of a truck.
  • the profile part is preferably characterized by at least one feature, which is due to at least one process step of the manufacturing process.
  • the manufacturing method is preferably characterized by at least one
  • Process step which is due to at least one feature of the profile part.
  • Fig. 1 is a schematic cross-sectional view of an embodiment of a
  • Fig. 2 is a schematic representation of a preferred embodiment of a
  • Figure 1 shows a schematic cross-sectional view of an embodiment of a profile part 1.
  • the cross-sectional plane is a plane on which a longitudinal axis L of the profile part 1 is perpendicular.
  • the profile part 1 has an inner profile 3, which as
  • Extrusion profile is made. In this case, an extrusion direction of the extends
  • Inner profile preferably along the longitudinal axis L.
  • the inner profile 3 and also the entire profile part 1 is preferably produced as an endless profile, wherein it is preferably separated or cut to length at the end of the manufacturing process in individual pieces.
  • the profile part 1 also has a reinforcing layer 5, which consists of fiber-reinforced plastic.
  • the reinforcing layer 5 is applied to the inner profile 3.
  • the inner profile 3 has at least two layers, in the illustrated here
  • Embodiment exactly three layers. These are here an outer layer 7, an intermediate layer 9 and an inner layer 11.
  • the reinforcing layer 5 has reinforcing fibers 13, which are used as long fibers
  • the reinforcing layer 5 is preferably applied to the inner profile 3 by hybrid fiber rovings, which comprise reinforcing fibers and a matrix material, applied to the inner profile 3, in particular braided.
  • hybrid fiber rovings which comprise reinforcing fibers and a matrix material, applied to the inner profile 3, in particular braided.
  • plastic fibers, glass fibers, metal fibers, ceramic fibers, aramid fibers or basalt fibers are suitable for the reinforcing fibers 13.
  • the reinforcing layer 5 comprises a plurality of different fibers of different fiber materials.
  • a matrix material is provided either in the form of matrix fibers and / or in the form of a coating of the reinforcing fibers 13 in the hydride fiber rovings of the continuous fiber material. It comes as
  • Matrix material in particular polyamide or polyphthalamide in question.
  • PA 6 is used as the matrix material for the reinforcing layer 3.
  • the outer layer 7 preferably comprises a matrix material for a fiber-reinforced plastic, particularly preferably the same material, which is included as matrix material of the reinforcing layer 13. It is possible that the outer layer 7 is made of this material. Furthermore, it is possible that the outer layer 7 comprises a fiber-reinforced plastic or consists of a fiber-reinforced plastic, in particular short fibers are used as reinforcing fibers.
  • a material for the outer layer 7 is in particular a thermoplastic, preferably polyamide or polyphthalamide, in particular PA 6, in question.
  • the intermediate layer 9 preferably has stiffer and / or stronger
  • It is preferably designed as a support layer, which serves in particular to receive and support mechanical forces introduced into the profiled part 1, be it forces caused by an internal pressure during hydroforming, during encapsulation of the profiled part 1 with plastic from the outside acting compressive forces, bending forces during forming of the profile part 1, or when using the profile part 1 in this introduced forces.
  • Intermediate layer 9 preferably comprises a thermoplastic or consists of such.
  • the intermediate layer 9 preferably comprises or consists of a material selected from a group consisting of polyamide 6.6, polyphthalamide, liquid crystal polymer (LCP), polyetherimide (PEI), polyphenylene sulfide (PPS), pulysulfone (PSU), PA 12, polyimide, polyetheretherketone, polyoxymethylene and radiation-crosslinked polyamide. It is possible that the material of the intermediate layer 9 is foamed.
  • the inner layer 11 preferably comprises a gas-impermeable plastic or consists of a gas-impermeable plastic. In this way, the profile part as a whole can be easily and safely formed by hydroforming without rupture or bursting of the profile part 1 would be feared.
  • the inner layer 11 preferably comprises or consists of a thermoplastic.
  • the inner layer 11 comprises or consists of a material selected from a group consisting of polyamide 6.6, polyphthalamide, Liquid crystal polymer (LCP), polyetherimide (PEI), polyphenylene sulfide (PPS), polysulfone (PSU), PA 12, polyimide, polyetheretherketone, polyoxymethylene, and radiation crosslinked polyamide. It is possible that the material of the inner layer 11 is foamed.
  • the material of the intermediate layer 9 and / or the inner layer 11 can be any material.
  • fiber reinforced plastic or consist of fiber reinforced plastic.
  • reinforcing fibers in particular short fibers are used.
  • the reinforcing layer 5 preferably has long fibers, which are preferably braided.
  • the reinforcing layer 5 When the reinforcing layer 5 is consolidated, it preferably bonds to the outer layer 7 in a materially bonded manner, wherein a layer boundary 15 flows between the two layers 5, 7 and, more preferably, ultimately is no longer present. It is shown schematically in FIG. 1. In particular, however, when the material of the outer layer 7 is different from the matrix material of the reinforcing layer 5, the layer boundary 15 may be maintained more or less defined upon consolidation of the reinforcing layer 5.
  • Figure 2 shows a schematic representation of an embodiment of a method for producing the profile part.
  • a method for producing the profile part for the production of the profile part 1 a
  • the pultrusion unit 27 also serves to post-deform the profile part 1 by pressing it preferably through an input matrix of the pultrusion unit. A bending of the profile part 1 in the pultrusion unit 27 is possible.
  • the pultrusion unit 27 also has a take-off device 29 for removing the profile part 1, which is initially designed as an endless profile.
  • the Multi-component extruder 19 preferably has a separate extraction device 31, in which case the withdrawal forces can be distributed more homogeneously over the entire length of the resulting endless profile.
  • Discharge device 29 a separator 33 is arranged, through which the
  • Endless profile in separate profile parts 1 can be separated or cut to length.
  • the profile part 1 is preferably produced in an integrated process, wherein the application of the reinforcing layer 5 in the
  • Lichen unit 21 immediately after the extrusion of the inner profile 3 is done so that the reinforcing layer 5 is applied directly to the extruded continuous inner profile 3. Thereafter, the pultrusion and consolidation of the
  • the resulting profile parts 1 are preferably one
  • the profile parts 1 are at least partially encapsulated with a plastic, in particular a fiber-reinforced plastic and very particularly preferably a short fiber reinforced plastic.
  • a plastic in particular a fiber-reinforced plastic and very particularly preferably a short fiber reinforced plastic.
  • particularly preferably connecting elements are molded onto the profile parts 1, which ultimately serve the connection with adjacent components of an assembly, for which the profile parts 1 are used.
  • These are particularly preferably planking parts of a body of a vehicle, in particular one
  • Motor vehicle preferably a truck.
  • the plastics used are preferably used in a wide temperature range, in particular from -40 ° C to 90 ° C. In this way, for the profile part 1 increased power values, while saving weight and cost due to the used
  • mitwandertenden endless fibers in the braiding unit 21 mitwandert, also decrease the withdrawal forces, which must apply the trigger 29. It also turns out a significantly lower probability of fiber tears than when applied to a fixed core braid.
  • an ideal torsion and rigid, closed hollow profile profile part 1 can be produced using the method.
  • the method represents a production-compatible and highly integrative production process.
  • the profile part 1 has a recycling-compatible Matehaltechnik, wherein in the context of recycling the profile part 1 is useful in particular as a technically usable, reinforced plastic granules.
  • the performance of the profile part 1 can be increased by integration of different materials and in particular by the multi-layered inner profile 3, wherein the profile part 1 can be tailored in particular requirement-dependent. He can in particular be given an increased strength and rigidity. Gas-impermeable properties are possible, in addition, the profile part 1 can be resistant to media and temperature and have particularly favorable sliding properties. Finally, it is also possible to improve the NVH behavior (noise, vibration, harshness) of the profile part 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Moulding By Coating Moulds (AREA)
  • Laminated Bodies (AREA)

Abstract

La présente invention concerne une pièce profilée (1) comportant un profilé intérieur (3) conçu sous forme de profilé d'extrusion, et au moins une couche de renforcement (5) composée de matière plastique renforcée par des fibres, qui est appliquée sur ledit profilé intérieur (3), caractérisée en ce que ledit profilé intérieur (3) est formé d'au moins deux couches.
PCT/EP2015/002087 2014-12-19 2015-10-27 Pièce profilée et procédé de fabrication d'une pièce profilée WO2016096061A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP15837222.7A EP3233488B1 (fr) 2014-12-19 2015-10-27 Pièce profilée et procédé de fabrication d'une pièce profilée
US15/537,201 US10611128B2 (en) 2014-12-19 2015-10-27 Profile part and method for the production of a profile part
CN201580068908.9A CN107107578B (zh) 2014-12-19 2015-10-27 成型件以及制造成型件的方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014019152.4 2014-12-19
DE102014019152.4A DE102014019152A1 (de) 2014-12-19 2014-12-19 Profilteil sowie Verfahren zur Herstellung eines Profilteils

Publications (1)

Publication Number Publication Date
WO2016096061A1 true WO2016096061A1 (fr) 2016-06-23

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Country Status (5)

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US (1) US10611128B2 (fr)
EP (1) EP3233488B1 (fr)
CN (1) CN107107578B (fr)
DE (1) DE102014019152A1 (fr)
WO (1) WO2016096061A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016215953A1 (de) 2016-08-25 2018-03-15 Volkswagen Aktiengesellschaft Wickelverfahren und Wickelvorrichtung zum kontinuierlichen Bewickeln eines Kernes
DE102018111283B4 (de) * 2018-05-11 2022-02-17 Herone Gmbh Vorrichtung, Verfahren und Verwendung der Vorrichtung zum semikontinuierlichen Blasformen faserverstärkter thermoplastischer Hohlprofile mit einem konstanten oder sich änderndem Querschnitt

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5957164A (en) * 1998-09-10 1999-09-28 Aeroquip Corporation Refrigerant hose
DE102009016596A1 (de) 2009-04-08 2010-10-14 Rehau Ag + Co Verfahren zur Herstellung eines hochsteifen, hybriden Endlosprofils sowie hochsteifes, hybrides Endlosprofil
WO2013075775A2 (fr) * 2011-11-22 2013-05-30 Daimler Ag Procédé de fabrication d'un profilé creux et élément en profilé creux

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2815043A (en) * 1955-03-29 1957-12-03 Ganahl De Plastic pipe and method of making same
US20140182735A1 (en) * 2012-12-28 2014-07-03 Thercom Holdings, Llc Thermoplastic extrusion with vapor barrier and surface sulfonation

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5957164A (en) * 1998-09-10 1999-09-28 Aeroquip Corporation Refrigerant hose
DE102009016596A1 (de) 2009-04-08 2010-10-14 Rehau Ag + Co Verfahren zur Herstellung eines hochsteifen, hybriden Endlosprofils sowie hochsteifes, hybrides Endlosprofil
WO2013075775A2 (fr) * 2011-11-22 2013-05-30 Daimler Ag Procédé de fabrication d'un profilé creux et élément en profilé creux

Also Published As

Publication number Publication date
CN107107578B (zh) 2019-08-23
EP3233488A1 (fr) 2017-10-25
US20170341349A1 (en) 2017-11-30
EP3233488B1 (fr) 2021-03-24
CN107107578A (zh) 2017-08-29
US10611128B2 (en) 2020-04-07
DE102014019152A1 (de) 2016-06-23

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